Chris Carlsson has been curating and sharing radical history in San Francisco going back to the early 1980s via his role in the now-infamous magazine Processed World. Since the mid-1990s he co-founded and still co-directs Shaping San Francisco, which has gone through a number of permutations induced by technological cul-de-sacs, but today is available as a sprawling online archive at FoundSF.org. Additionally, Shaping San Francisco hosts an ongoing series of public talks and bicycle history tours, as well as some walking tours. Lately he’s even been known to teach local history at the SF Art Institute and other local colleges, and has given talks, lectures, and media appearances many dozens of times during the past few years. He’s also known for helping to co-found the global phenomenon of Critical Mass bike rides.

“Thanks to local activist Chris Carlsson’s Bicycle History Tours, you can get your fun in the sun while simultaneously learning loads about San Francisco’s various social, political, and ecological histories.”